All of lore.kernel.org
 help / color / mirror / Atom feed
From: Magnus Damm <magnus.damm@gmail.com>
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] ARM: mach-shmobile: sh73a0 twd_base fix
Date: Thu, 19 May 2011 06:26:20 +0000	[thread overview]
Message-ID: <20110519062620.27921.52669.sendpatchset@t400s> (raw)

From: Magnus Damm <damm@opensource.se>

Fix the case of too late twd_base initialization for SMP
on sh73a0 which bas been broken because sh73a0 specific
smp_prepare_cpu() and percpu_timer_setup() changed order
in the commits:

05c74a6cbcfb416286a947668ba32f63d99fe74a
c413521eb4e2d7ffd5ce432a144708d479054bd3

Without this fix the sh73a0 SMP kernel panics on boot.

Signed-off-by: Magnus Damm <damm@opensource.se>
---

 arch/arm/mach-shmobile/smp-sh73a0.c |    9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

--- 0001/arch/arm/mach-shmobile/smp-sh73a0.c
+++ work/arch/arm/mach-shmobile/smp-sh73a0.c	2011-05-19 14:50:24.000000000 +0900
@@ -59,6 +59,11 @@ unsigned int __init sh73a0_get_core_coun
 {
 	void __iomem *scu_base = scu_base_addr();
 
+#ifdef CONFIG_HAVE_ARM_TWD
+	/* twd_base needs to be initialized before percpu_timer_setup() */
+	twd_base = (void __iomem *)0xf0000600;
+#endif
+
 	return scu_get_core_count(scu_base);
 }
 
@@ -82,10 +87,6 @@ int __cpuinit sh73a0_boot_secondary(unsi
 
 void __init sh73a0_smp_prepare_cpus(void)
 {
-#ifdef CONFIG_HAVE_ARM_TWD
-	twd_base = (void __iomem *)0xf0000600;
-#endif
-
 	scu_enable(scu_base_addr());
 
 	/* Map the reset vector (in headsmp.S) */

WARNING: multiple messages have this Message-ID (diff)
From: magnus.damm@gmail.com (Magnus Damm)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] ARM: mach-shmobile: sh73a0 twd_base fix
Date: Thu, 19 May 2011 15:26:20 +0900	[thread overview]
Message-ID: <20110519062620.27921.52669.sendpatchset@t400s> (raw)

From: Magnus Damm <damm@opensource.se>

Fix the case of too late twd_base initialization for SMP
on sh73a0 which bas been broken because sh73a0 specific
smp_prepare_cpu() and percpu_timer_setup() changed order
in the commits:

05c74a6cbcfb416286a947668ba32f63d99fe74a
c413521eb4e2d7ffd5ce432a144708d479054bd3

Without this fix the sh73a0 SMP kernel panics on boot.

Signed-off-by: Magnus Damm <damm@opensource.se>
---

 arch/arm/mach-shmobile/smp-sh73a0.c |    9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

--- 0001/arch/arm/mach-shmobile/smp-sh73a0.c
+++ work/arch/arm/mach-shmobile/smp-sh73a0.c	2011-05-19 14:50:24.000000000 +0900
@@ -59,6 +59,11 @@ unsigned int __init sh73a0_get_core_coun
 {
 	void __iomem *scu_base = scu_base_addr();
 
+#ifdef CONFIG_HAVE_ARM_TWD
+	/* twd_base needs to be initialized before percpu_timer_setup() */
+	twd_base = (void __iomem *)0xf0000600;
+#endif
+
 	return scu_get_core_count(scu_base);
 }
 
@@ -82,10 +87,6 @@ int __cpuinit sh73a0_boot_secondary(unsi
 
 void __init sh73a0_smp_prepare_cpus(void)
 {
-#ifdef CONFIG_HAVE_ARM_TWD
-	twd_base = (void __iomem *)0xf0000600;
-#endif
-
 	scu_enable(scu_base_addr());
 
 	/* Map the reset vector (in headsmp.S) */

             reply	other threads:[~2011-05-19  6:26 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-05-19  6:26 Magnus Damm [this message]
2011-05-19  6:26 ` [PATCH] ARM: mach-shmobile: sh73a0 twd_base fix Magnus Damm
2011-05-19  6:42 ` Santosh Shilimkar
2011-05-19  6:54   ` Santosh Shilimkar
2011-05-19 11:50 ` Sergei Shtylyov
2011-05-19 11:50   ` Sergei Shtylyov

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20110519062620.27921.52669.sendpatchset@t400s \
    --to=magnus.damm@gmail.com \
    --cc=linux-arm-kernel@lists.infradead.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.